Disaster Medical Science Division
Disaster Psychiatry Lab
Assistant Professor

Research Subject(s)
I'm examining the factors that influence mental health problems and recovery associated with disasters, through a survey on post-disaster mental health. At the same time, I'm also examining the content and delivery system of psychosocial support that can help improve the mental health of disaster victims in order to lead to faster recovery from disasters.
Key Words
Preventive Psychiatry / Disaster Psychiatry / Mental Health / Resilience / Posttraumatic Stress Disorder
Research Activities

Based on the results of annual surveys that have been conducted continuously since 2011 under an agreement between our department and Shichigahama-town in Miyagi Prefecture, I'm examining the psychosocial impact on disaster victims of the Great East Japan Earthquake from a long-term perspective and identifying factors that affect the mental health of the victims.
I also plan to examine the content of psychosocial support that is useful for improving the mental health of disaster victims, as well as methods and delivery systems that are easy to use.

I also emphasize a preventive perspective and an early intervention position that minimizes mental health problems and provides appropriate mental health care as quickly as possible to those who need it. Pre-disaster preparedness is essential to protect oneself, choose appropriate actions, and minimize mental health problems in the event of a disaster. My goal is to provide mental health knowledge and measures that can be used during normal times and are also useful in the event of a disaster.

Selected Works

Kunii, K., et al. (2022). Review of Mental Health Consequences of the Great East Japan Earthquake through Long-Term Epidemiological Studies: The Shichigahama Health Promotion Project. The Tohoku Journal experimental medicine, 257(2), 85-95.

Hamaie, Y., et al.(2016). An open label study of cognitive behavioural therapy for individuals with at-risk mental state: Feasibility and safety in a Japanese clinical setting. EARLY INTERVENTION IN PSYCHIATRY. 10. 201.

Hamaie, Y., et al.(2016). Criticism and Depression among the Caregivers of At-Risk Mental State and First-Episode Psychosis Patients. PloS one, 11, doi: 10.1371/journal.pone.0149875.

Hamaie, Y., et al.(2019). Expressed emotion theory as a causal factor of mental illness: Overview of expressed emotion studies in early psychosis. Japanese Journal of Psychiatric Treatment, 34(10), 1129-1136. 
Hamaie, Y., et al. (2018). Intervention to trauma in early psychosis. Japanese Journal of Preventive Psychiatry, 3(1), 31-42.

Selected Memberships
  • The Association of Japanese Clinical Psychology
  • Japanese Society for Prevention and Early intervention in Psychiatry
  • Japanese Society of Schizophrenia Research
  • Japanese Society for Traumatic Stress Studies
  • Japanese Association for Cognitive Therapy
Selected Awards
  • Encouragement Prize, The fifth Japanese Society of Schizophrenia Research